Farm Equipment - WD 45 Rear hydraulic line

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WD 45 Rear hydraulic line

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=169454
Printed Date: 17 Sep 2026 at 7:26pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: WD 45 Rear hydraulic line

Posted By: zachman60
Subject: WD 45 Rear hydraulic line
Date Posted: 25 Mar 2020 at 7:42pm

Hello, New to this site and have a question about the 3rd line- the one that runs under the seat to a quick disconnect. i am wondering what size reducer the steel line runs into before it gets to the steel plate that mounts to the tractor. hope this makes sense.

Thanks Zach

Replies:

Posted By: ac fleet
Date Posted: 25 Mar 2020 at 7:46pm

I know exactly what you are talking about and have 4 tractors with that line on them---sadly I can't tell you the size right off the top of my head!

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Posted By: zachman60
Date Posted: 25 Mar 2020 at 7:56pm

If you happen to find out please let me know. Thanks much!

Posted By: dawntreader74
Date Posted: 25 Mar 2020 at 11:51pm

it's around 1\2 in' steel line

Posted By: SteveM C/IL
Date Posted: 26 Mar 2020 at 9:54am

I thought it was 5/8. Nut is 3/4 but that doesn't mean much.

Posted By: ac fleet
Date Posted: 26 Mar 2020 at 2:55pm

The line is exactly 0.500---so thats 1/2 inch for the line, nut comes up 7/8 , and the threads that go into the the plate are very small. ----I couldnt stay out long enough to get serious measurements. That little adapter is what you are asking about, right?

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